An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios

In this paper, an area and power efficient two-stage spectrum sensing scheme for cognitive radios (CRs) is proposed. A typical parallel spectrum sensing using filter bank has advantages of lowest mean detection time, less interference to primary users and better throughput over serial spectrum sensi...

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Main Authors: Darak, Sumit Jagdish, Vinod, Achutavarrier Prasad, Lai, Edmund Ming-Kit
Other Authors: School of Computer Engineering
Format: Conference or Workshop Item
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/97802
http://hdl.handle.net/10220/12150
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-978022020-05-28T07:17:17Z An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios Darak, Sumit Jagdish Vinod, Achutavarrier Prasad Lai, Edmund Ming-Kit School of Computer Engineering International Symposium on Communications and Information Technologies (2012 : Gold Coast, Australia) DRNTU::Engineering::Computer science and engineering In this paper, an area and power efficient two-stage spectrum sensing scheme for cognitive radios (CRs) is proposed. A typical parallel spectrum sensing using filter bank has advantages of lowest mean detection time, less interference to primary users and better throughput over serial spectrum sensing. However, these advantages come at the huge cost of increased area complexity and power consumption. The two-stage spectrum sensing consists of basic sensing stage using energy detection (ED) followed by advanced sensing stage using cyclostationary feature detection (CFD). The computation complexity and power consumption of CFD are very high compared to ED. Based on several spectrum occupancy measurement surveys conducted worldwide, we conclude that not all the CFD blocks in a typical parallel sensing scheme are fully utilized due to relatively sparse spectrum. Motivated by this observation, we propose a spectrum sensing scheme with reduced number of CFD blocks optimized based on spectrum occupancy information. The proposed scheme offers substantial reductions in area and power consumption while achieving same performance in terms of mean detection time compared with other existing spectrum sensing schemes. 2013-07-25T02:08:59Z 2019-12-06T19:46:53Z 2013-07-25T02:08:59Z 2019-12-06T19:46:53Z 2012 2012 Conference Paper Darak, S. J., Vinod, A. P., & Lai, E. M.-K. (2012). An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios. 2012 International Symposium on Communications and Information Technologies (ISCIT). https://hdl.handle.net/10356/97802 http://hdl.handle.net/10220/12150 10.1109/ISCIT.2012.6380903 en © 2012 IEEE.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Computer science and engineering
spellingShingle DRNTU::Engineering::Computer science and engineering
Darak, Sumit Jagdish
Vinod, Achutavarrier Prasad
Lai, Edmund Ming-Kit
An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios
description In this paper, an area and power efficient two-stage spectrum sensing scheme for cognitive radios (CRs) is proposed. A typical parallel spectrum sensing using filter bank has advantages of lowest mean detection time, less interference to primary users and better throughput over serial spectrum sensing. However, these advantages come at the huge cost of increased area complexity and power consumption. The two-stage spectrum sensing consists of basic sensing stage using energy detection (ED) followed by advanced sensing stage using cyclostationary feature detection (CFD). The computation complexity and power consumption of CFD are very high compared to ED. Based on several spectrum occupancy measurement surveys conducted worldwide, we conclude that not all the CFD blocks in a typical parallel sensing scheme are fully utilized due to relatively sparse spectrum. Motivated by this observation, we propose a spectrum sensing scheme with reduced number of CFD blocks optimized based on spectrum occupancy information. The proposed scheme offers substantial reductions in area and power consumption while achieving same performance in terms of mean detection time compared with other existing spectrum sensing schemes.
author2 School of Computer Engineering
author_facet School of Computer Engineering
Darak, Sumit Jagdish
Vinod, Achutavarrier Prasad
Lai, Edmund Ming-Kit
format Conference or Workshop Item
author Darak, Sumit Jagdish
Vinod, Achutavarrier Prasad
Lai, Edmund Ming-Kit
author_sort Darak, Sumit Jagdish
title An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios
title_short An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios
title_full An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios
title_fullStr An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios
title_full_unstemmed An area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios
title_sort area and power efficient two-stage parallel spectrum sensing scheme for cognitive radios
publishDate 2013
url https://hdl.handle.net/10356/97802
http://hdl.handle.net/10220/12150
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